spark plug threads are oily

[325DR]

I have been having a problem where I am loosing oil. My TB is DRY. When cruising around town I dont loose any oil. But when I leave the track after making a few passes, I am about .5-1qt low. The car does not smoke AT ALL at WOT. I pulled the spark plugs today and all of them were oily on the threads. Any suggestions?

 

[Orion231]

Oily plug threads

Mine does that a little also, with higher boost u get oil in your vaccum system also, a little blow by won't hurt anything, but mine does the same thing...

 

[UNGN]

Oily threads are leaking valve cover gaskets or the donut under the fill tube.

 

[blackbuick87]

Well the oil is going somewhere, and it is probably doing it under boost which means WOT. Check your PCV also. It could be pushed out of a lot of places

 

[Joe 1320]

Just because you can't detect the smoke, doesn't mean it is not being burned. At WOT, so much fuel is being burned that it often masks the slight blue tinge to the color of the exhaust. The oil on the spark plug threads may or may not be the valve cover. I thought my first motor had a leaky valve cover gasket. The gasket was fine, yet oil was still getting into the spark plug threads. That particular case was a bad oil seal on the intake valve. I was consuming oil and oil was showing up on the plug threads too. A compression and leakdown test would tell you more.